Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 4:34:36 PM (PDT) on Saturday, September 13, 2025.
The magnitude 1.4 event occurred 12 km (8 miles) S of Ridgemark, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Saturday, September 13, 2025 at 4:34:36 PM (PDT) Saturday, September 13, 2025 at 23:34:36 (UTC) |
| Distance from |
Ridgemark, CA - 12 km (8 miles) S (186 degrees) Hollister, CA - 16 km (10 miles) S (174 degrees) Chualar, CA - 19 km (12 miles) NE (40 degrees) San Juan Bautista, CA - 21 km (13 miles) SE (138 degrees) Gonzales, CA - 23 km (14 miles) NNE (15 degrees) |
| Coordinates | 36 deg. 42.2 min. N (36.703N), 121 deg. 22.8 min. W (121.380W) |
| Depth | 2.02 km (1.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=3.1 km, Rmss=0.11 sec, Erho=0.5 km, Erzz=0.889999986 km, Gp=109 degrees |
| Event ID# | nc75237542 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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